Games like Skeleton King
Games like Skeleton King include Resident Evil 4, Mountain, The Isle, Dead by Daylight, and Resident Evil 2. We matched them by the tags players give Skeleton King on Steam (Horror, Relaxing, Realistic, Third Person, and Runner): closest matches first, and among equally close ones the better-known games.

Resident Evil 4
Shared: Horror · Survival Horror · Third Person

Mountain
Shared: Relaxing · Casual · Simulation

The Isle
Shared: Realistic · Horror · Survival

Dead by Daylight
Shared: Horror · Third Person · Survival Horror

Resident Evil 2
Shared: Horror · Third Person · Survival Horror

Superflight
Shared: Relaxing · Casual · Procedural Generation

Backrooms: Escape Together
Shared: Horror · Realistic · Procedural Generation

Euro Truck Simulator 2
Shared: Realistic · Relaxing · Simulation

The Forest
Shared: Horror · Survival · Survival Horror

Train Simulator Classic
Shared: Realistic · Relaxing · Casual

Alice: Madness Returns
Shared: Horror · Dark Fantasy · Gothic

Five Nights at Freddy's
Shared: Horror · Survival Horror · Indie

ALTF4
Shared: Runner · Third Person · Casual

Drift86
Shared: Casual · Third Person · Relaxing

Visage
Shared: Horror · Realistic · Walking Simulator

Dark Deception
Shared: Horror · Runner · Indie

Tank Mechanic Simulator
Shared: Realistic · Relaxing · Simulation

Tiny Glade
Shared: Relaxing · Casual · Procedural Generation

CINERIS SOMNIA
Shared: Horror · Third Person · Walking Simulator

Poppy Playtime
Shared: Horror · Survival Horror · Survival

Outlast
Shared: Horror · Survival Horror · Survival

Supermarket Chaos
Shared: Relaxing · Casual · Walking Simulator

American Truck Simulator
Shared: Realistic · Relaxing · Simulation

Potion Craft: Alchemist Simulator
Shared: Relaxing · Casual · Simulation